JellyCalc
Plan & design Jelly-Roll rugs
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
JellyCalc is a planning and design app for jelly-roll rug makers.
It combines accurate fabric calculations with JellyCalc Designer, an interactive visual designer, so you can plan and design your rug with confidence.
JellyCalc Calculator
Calculate fabric and strip consumption for your jelly-roll rug based on size and layout. Adjust dimensions and instantly see how your requirements change.
JellyCalc Designer
Design your rug visually using colors from a palette, or real fabric strips from existing jelly-roll precuts. Resize your rug and watch the design update in real time — create a mockup that closely matches how your finished rug will look once sewn.
Whether you want precise calculations, a visual preview, or both — JellyCalc helps you plan smarter and sew with confidence.
Terms of Use (EULA): https://jellycalc.com/terms
Privacy Policy: https://jellycalc.com/privacy
- Fixed the design page freezing and having to sign out and back in
- Saving now always saves what's on screen, and reopened designs keep their jelly-rolls
- Faster first start and much lower data usage: jelly-roll textures now download only when you add them
- Bug fixes and performance improvements
The developer, Zuzana Havlickova, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
- Purchases
- Contact Info
- Identifiers
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Zuzana Havlickova
- Size
- 60.5 MB
- Category
- Lifestyle
- Compatibility
Requires iOS 15.1 or later.
- iPhone
Requires iOS 15.1 or later. - iPod touch
Requires iOS 15.1 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Contains
Advertising
- In-App Purchases
Yes
- Premium Yearly $19.99
- Premium Monthly $1.99
- Copyright
- © 2026 JellyCalc